{php} if(is_array($nav) && count($nav)>1) { {/php}
<ul class="tab-nav nav">
  {volist name='nav' id='vo'}
    <li class="{$vo.class}"><a href="{:isset($vo.url) ? $vo.url :''}">{$vo.title}<span class="arrow fa fa-sort-up"></span></a></li>
  {/volist}
</ul>
{php} } {/php}
{if condition="!empty($sub_nav)"}
<div class="sub-tab-nav">
       <ul class="sub_tab">
       {volist name="sub_nav" id="vo"}
          <li><a class="{$vo.class}" href="{$vo.url}">{$vo.title}<span class="arrow fa fa-sort-up"></span></a></li>
       {/volist}
      </ul>
</div> 
{/if}
{if condition="!empty($normal_tips)"}
	<p class="normal_tips"><b class="fa fa-info-circle"></b> {$normal_tips|raw}</p>
{/if}